Telegeaph



(No Model.)

I. A. TURNER. SIGNALING TELEGRAPH.

No. 533,254. I Patented Jan. 29, 1895.

; 4 g m HEM (A M l 1 m FRANK A. TURNER, OF CHELSEA, MASSACHUSETTS,ASSIGN OR TO THE GAME- WELL FIRE-ALARM TELEGRAPH COMPANY, OF NEW YORK,N. Y.

SIGNALING-TELEGRAPH.

SPECIFICATION forming part of Letters Patent No. 533,254, dated January29, 1895.

' Application filed July 27, 1893.

To all whom it may concern.-

Be it known that I, FRANK A. TURNER, a citizen of the United States,residing at Chelsea, in the county of Suffolk and State ofMassachusetts, have invented certain new and useful Improvements inSignaling-Telegraphs,

of which the following is a specification.

My invention relates, especially to signaling systems such as are usedfor police purposes, there being at the outlying signal boxes means bywhich signals of different kinds, or multiple signals, can betramsmitted to the central station, where not only is indicated on thereceiver the number of the box, but also the number of the officersending the signal, or a call for an ambulance, a patrol wagon, or someother special signal which the transmitting apparatus is adapted tosend.

My invention consists in devices to be placed at the central office torecord the character of the signal which is received.

It is illustrated in the accompanying drawing, which is a diagrammaticrepresentation of my apparatus.

In the'drawing A represents a signal box and B the central station. Atthe former, provision of any suitable kind is made for sending signalsof a distinct character. I have indicated this by showing three signalwheels with notches difierently arranged so as to cause difieringcombinations of interruptions of the circuit by the diifering lengthsand spacings of such interruptions. A switch 0 is provided forbringinginto circuit either one of these three wheels according to thecharacter of the signal which it is desired to send. At the receivingstation D is a strip of paper adapted to be drawn from a reel by clock.work in a well known manner. passes under a punchE which is operated bythe armature leverF of the main line magnet G, being adapted wheneverthe said armature is released to be drawn back under the influence ofits retractile spring and thus punch a single round hole in the strip Dat each stroke. A second magnet H also controls the lever F beingincluded at each retraction of armature F in the circuit of localbattery J, by means of the circuit closer K 50 actuated by the saidarmature. I

It will be quite apparent that if the main This strip I Serial No.481,643. (No model.)

I line magnet G should be entirely die-energized so as to exert noinfluence whatever upon lever F, the said lever would be left ontirelyunder the control of magnet H, and 5 would be kept constantlyinvibration by the automatic operation of the circuit closer K, the resultofsuch vibration being that a series of holes is punched in the strip Dso close together as to overlap and form a single slotted hole in thepaper. If, however, a single short break only is made in the main line,the punch E will make but one stroke. Now, it will be clear that thesignal wheels at station A maybe so cut as to give any combination ofnotches having any desired spacing and any desired length, and also thatby the operation of the receiving device thus far described, the makesand breaks caused by any one signal wheel will be accurately reproducedin the punchings on strip D. Thus a single short break will give asingle hole in the strip. An interval may follow of any desired lengthand then a longer break which will allow a slot to be punched in thestrip corresponding to the length of such break.

I utilize this arrangement in the following manner: The strip D is drawnalong under a series of drops L, L 850., each of which has its lowersurface so shaped that it will drop into a special punching in the stripcaused by a corresponding arrangement of notches on either one of thesignal wheels, but will not fall into any other punching than its own.Thus for instance, it will be seen that each one of the signal wheelswhich are marked 1,

2, 3 have a long notch m which passes under the contactspring j ustbefore the wheel comes to rest in its normal position shown in thedrawing. This notch m is so shaped that it 0 will open the main circuita sufficient length of time to permit three strokes of the punch E andthis will make a slot in strip D of the form shown at aand the drop L isof such a length that it will drop through the slot at 5 and therebyclose the circuit of magnet M which controls the timestamp N. Thuswhichever signal wheel is operated, the last break would be of thelength necessary to cause the operation of time-stamp N. In like mannerthe signal wheel 2 makes first along break and then a short break. Thiswill permit two strokes of the punch and after a suitable space a secondbreak will permit to be punched a slot of the form shown at c and thedrop L is so shaped that it will enter the slot 0 and no other, andthereby close the circuit of the signal 0 which will give a specialindication at the station corresponding to the special arrangement ofnotches on wheel 2. For instance, it may be arranged that this signalwill be the one-for a patrol wagon. In the same way signals of any kindcan be sent by a suitable combination of the notches in the wheels andsuch signal will be indicated at the central station by theautomaticselective action of the drops L.

I may, if it is so desired, use a drop of the shape L which willcorrespond to each short break in the circuit and this can be used toclose the circuit of magnet P which will operate the pole-changer Q inthe main line and thus send out an impulse of reversed current toactuate polarized bells in the several signal boxes and thus notifythe-officer sending the signal that his message has been received. Thesame arrangement can be used at times to notify the oflicer that he iswanted at the telephone.

Should the line become broken, the long slot will be punched in themanner indicated at e and this will permit the long drop L to fall andclose the circuit of a special alarm calling attention to the fact ofthe broken circuit, and also close the circuit of the local battery Bthrough a section of the main magnet G. This will draw up armature leverF and stop the punching; while at the same time a magnet S in thiscircuit will establish a ground connection for the main line at thecentral station, the object of this being that the signals may stillbe'received on a grounded circuit, for it is usually arranged at thesignal boxes that one round of the signal shall establish a groundconnection at each impulse and as there will be a corresponding groundat the central station, the main line circuit will be momentarilyclosed, and further as the main section of the winding on magnet G willbe opposed to the second section in the circuit of battery R, and as themain battery T will be arranged to have the same force as battery R,magnet G will be (lo-energized at each impulse and its armature will actas though the signal were being received over the main line in the usualmanner by breaks in the closed circuit.

The means for establishing during one round a ground connection at eachimpulse is shown at the signal box A. Supplementary contact springs as,00, 0c are in connection with the conductor y leading to an insulatedcontact plate 2. A second insulated contact plate 8, parallel to thefirst one, is connected to ground at 9. Each signal wheel is providedwith additional mechanism like that shown at 3. A small wheel 25,rotating with wheel 3, is geared with a larger wheel u. The wheel itcarries an arm p adapted to sweep over the contact plates z and s andclose the circuit between them. Assuming that four rotations of thewheelS complete a signal, the other wheels t and u are so proportionedthat during four rotations of wheel 3 the contact arm will close thecircuit between P; and 8 during one of the said four rotations and thusestablish a connection between conductor y and the ground. Theestablishing of the ground circuit is so timed that it will occur eitherat the beginning or end of the signal.

A is a polarized bell adapted to respond to reversals of the current bymeans of the pole changer Q, whenever the same is operated by the magnetP upon the closing of the local circuit by the drop L It will be obviousthat without departing from the spirit of my invention, I may introducevarious modifications, it being especially understood that I do notlimit myself to the forms of punching shown, but that any desiredcombinations corresponding to any system of special signals may beutilized;

What I claim as new, and desire to secure by Letters Patent, is

1. In a signaling system the combination of one or more transmitterseach adapted to send signals of various kinds, of a receiving apparatusconsisting of a strip of paper, a device for punching said paper inaccordance with the character of the respective signals, and a series ofindicators at the receiving station corresponding individually to therespective signals, the said indicators being respectively controlled bythe corresponding perforations in the said strip.

2. In a signaling system the combination of one or more transmitterseach adapted to send signals of various kinds, of a receiving apparatusconsisting of a strip of paper, a device for punching said paper inaccordance with the character of the respective signals, and a series ofcircuit controllers at the receiving station corresponding individuallyto the respective signals controlled by the said strip.

3. In a receiving apparatus for a signaling system, the combination witha strip, of a punch, a normally inactive magnet in a local circuit foroperating said punch when the main line is broken, a main line circuitnormally closed, and a second magnet in the main line for independentlyoperating said punch, but controlling said first magnet when the mainline is broken.

4. In a receiving apparatus for a signaling system, the combination witha single strip of means for punching the same in correspondence with thecharacter of the signal received, a series of differently shaped dropscorresponding to the respective punchings and adapted to enter thepunched portion of the strip and thereby indicate the character of thesignal received.

5. A receiving instrument for a signaling system consisting of a strip,a punch adapted to act continuously during a break in the main line anda drop adapted to enter the per- IIO foration in the strip caused bycontinuous punching, and a stop for the punching controlled by thefalling of said drop to interrupt the operation of the punch.

6. In a receiver for a signaling system, the combination of a strip, ofa punch adapted to act continuously during a break in the circuit, of adrop adapted to enter the perforation in the strip caused by continuouspunching, corresponding to an accidental break in the circuit, a localcircuit controlling the said punch, a ground connection for the mainline, and a device for sending a signal over the grounded circuit.

7. In a receiver for a signaling system, the combination of the mainline magnet having two windings, one included in the main line, and theother in a local circuit, a punch for acting continuously during thebreak in the mainline, a circuit closer, and a local circuit and groundconnection controlled by the perforation in the strip caused by anaccidental break in the main line.

8. In a receiver for a signaling system having a transmitter forproducing changes in the main line and a local circuit in which changesare produced by a break in the main line, the combination of a strip, apunch normally operated by a magnet in the main line and by a magnet insaid local circuit when the main line is broken, a series of differentlyshaped drops corresponding to the punchings caused by said changes insaid main and local circuits respectively, a series of local circuitscontrolled by said drops, and electrical apparatus in each of said localcircuits.

9. In a receiver for a signaling system havinga transmitter forproducing changes in the main line and a local circuit in which changesare produced by a break in the main line, the combination of a strip, apunch normally operated by a magnet in the mainline and by a magnet insaid local circuit when the main line is broken, a series of differentlyshaped drops corresponding to the punchings caused by said changes insaid main and local circuits respectively, and a pole changer in a localcircuit controlled by one of said drops for reversing the polarity ofthe main line.

10. In a receiver for a signaling system, the combination of a punchadapted to operate continuously during abreak in the main line, of adevice for sending difierent signals over the main line, each signalconsisting of a special combination of open and closed circuit periods,and a series of drops shaped to enter special perforations caused by thespecial signals and thereby operate the corresponding signal indicators.

In witness whereof I have hereunto set my hand this 3d day of July,1893.

FRANK A. TURNER.

Witnesses:

A. O. ORNE, A. A. MCBRIDE.

